- Praised in print by playwright Tennessee Williams after he saw Mooney's early-'70s college performance as Blanche Dubois in A Streetcar Named Desire. The two later became good friends.
- Cracked up Dustin Hoffman while filming Tootsie, improvising a line ("I can't act with this") that made the final cut.
- Owned "show-business" cats named Sagamore (appeared in commercials) and Lydia (subject of a book called Lydia Mewses).
- Enshrined in the Ellendale (N.D.) Walk of Fame at the inaugural ceremony on the town's 125th anniversary in 2007.